How to save on food

When you go shopping for food:
Do take coupons.
Do make a list.
Don't go hungry or tired.
Go alone, unless the other person will really help.
Look at the sale flyer of the grocery store.
Plan ahead meals so you can buy everything in one trip.
Try to go when it's not so crowded.
Don't give in to impulse buying.
Buy the amount you need.